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anonymous

  • 4 years ago

the surface tension of which of the following liquid is maximum? a)H20 b)C6H6 c)CH3OH d)C2H5OH

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  1. anonymous
    • 4 years ago
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    I guess is H20

  2. anonymous
    • 4 years ago
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    yea i too but on phyics can we apply chemistry by seeing str. we can ay or here it is another concept??

  3. anonymous
    • 4 years ago
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    i guess H20 have two hydrogen bonds. so, it should have the highest surface tension

  4. anonymous
    • 4 years ago
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    uhmm one more correct me if i m wrong surface tension means large surface area rit so by seeing str. we can say H2O is having max. surface tension

  5. TuringTest
    • 4 years ago
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    No, surface tension has to do with the polarity of the molecules. H2O is polar, and so the molecules at the surface are being pulled together by electrostatic forces. I don't think the other molecules on the list are polar (or at least as polar).

  6. anonymous
    • 4 years ago
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    ok so we will consider here polarity.. ok thnx

  7. TuringTest
    • 4 years ago
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    That's my best guess at least. I'm a little rusty in chem, so I'm assuming the other molecules are not as polar. Welcome!

  8. anonymous
    • 4 years ago
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    hey i dont need a guess.. ok just tell me the one abu definition i told abu surface tension is it rit or wrong??

  9. anonymous
    • 4 years ago
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    had a look at my new ques plz..

  10. Shayaan_Mustafa
    • 4 years ago
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    At 20C in mN/m Surface Tension of Water: 72.80 Surface Tension of Benzene: 28.88 Surface Tension of Methanol: 22.70 Surface Tension of Ethanol: 22.10

  11. anonymous
    • 4 years ago
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    how u calculate the ST of water??

  12. anonymous
    • 4 years ago
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    u learned theses values??

  13. Shayaan_Mustafa
    • 4 years ago
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    During the course of Solid state physics I taught them. and remember them. If want to calculate them then you have to perform experiments. These are experimental values. And different on different temperatures.

  14. Shayaan_Mustafa
    • 4 years ago
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    If you want to calculate surface tension. then may be i could help you. Now.

  15. anonymous
    • 4 years ago
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    ah.. not intersted in physics just doing my hw :) so i was thinking why dats y i asked thnx

  16. Shayaan_Mustafa
    • 4 years ago
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    hmmmm....... well jesa ap chahen madam.

  17. anonymous
    • 4 years ago
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    lolz.. no madam plz.. better cal me kirti or heena

  18. Shayaan_Mustafa
    • 4 years ago
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    ok heena. sorry. may i ask you something if you don't mind. please.

  19. anonymous
    • 4 years ago
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    ok now there are two buble of diff. radii .the exces presure outside to inside is?? a)more in big drop b)more in small drop c)equal in both d)there is no excess pressure inside the drops

  20. anonymous
    • 4 years ago
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    yea sure say?

  21. Shayaan_Mustafa
    • 4 years ago
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    let me analyze the situation. wait

  22. Shayaan_Mustafa
    • 4 years ago
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    ok i got the answer. From the concept of Buoyant force. Bigger area receive more pressure then small. so a) is correct.

  23. anonymous
    • 4 years ago
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    ans is B now find the reason

  24. Shayaan_Mustafa
    • 4 years ago
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    do you know the formula of pressure? it is P=F/A less area receive more pressure. more area receive less pressure.

  25. Shayaan_Mustafa
    • 4 years ago
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    Yeah I know. I made mistake up there. Therefore i used formula here. kindly correct. it is supposed to be b).

  26. Shayaan_Mustafa
    • 4 years ago
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    now it is clear to you? heena or kirti.

  27. anonymous
    • 4 years ago
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    oh yes so easy dumbo me nevr use mind well anyway thx...

  28. Shayaan_Mustafa
    • 4 years ago
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    my pleasure.

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